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The EMI Finder - ARRL
Some of the typical broadband emit- ters of radio frequency interference. (RFI) that you can pinpoint are power- line insulators, computers and indus- trial ... Learn More
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Q Factor Measurements on L-C Circuits - ARRL
Since SWR analyzers are becoming commonplace in many amateur radio rooms, it then becomes tempting to use this instrument for Q measurements on. L-C circuits. Learn More
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A Binaural I-Q Receiver - ARRL
Mar 2, 1999 ... It replaces the narrow filters and inteference-fight- ing hardware and software of a conventional radio with a wide-open binaural I-Q detec- tor ... Learn More
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Introduction Chapter 5 Notes - ARRL
An FET has high input impedance; a bipolar transistor has low input impedance ... As an RF detector. Metal-semiconductor a.k.a. Schottky a.k.a. hot carrier ... Learn More
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Study Guide for Exam Questions - ARRL
As an RF detector. D. As a high-voltage rectifier. E6B04. What type of ... Never use a high-impedance probe to measure a low-impedance circuit. C. Never ... Learn More
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Introduction - ARRL
Amplitude modulation, or AM radio, transmission is not subject to [the FM signal capture effect. (discussed below)]. This is one reason that the aviation ... Learn More
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Preparing for the Extra class license exam - ARRL
Jul 1, 2012 ... The Schottky diode or Schottky barrier diode is an electronic component that is widely used for radio frequency. (RF) application as a mixer or ... Learn More
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Preparing for the Extra class license exam - ARRL
Lead an amateur radio club at Agilent Technologies (where I used to work). ▫. The club operates and maintains a 2 meter repeater and a 440 repeater with Echo ... Learn More
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Product Reviews March 2016 Product Reviews: - ARRL
With my antenna nearby, I thought I was getting the high-power RF back into the radio, playing the havoc. A radio TOT is a good idea for the long-winded opera-. Learn More
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General Class - ARRL
What is the maximum bandwidth permitted by FCC rules for amateur radio stations transmitting on USB frequencies in the 60-meter band? A. 2.8 kHz. B. 5.6 kHz. C. Learn More
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